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authorGui Jianfeng <guijianfeng@cn.fujitsu.com>2010-06-07 10:32:29 +0800
committerAvi Kivity <avi@redhat.com>2010-08-01 10:46:04 +0300
commitb9d762fa79f541ab480cdb733b46fdb0b4471c2d (patch)
tree58b1a1934b6759b6c279b2c8b8cee3f09cff8abd
parent0671a8e75d8aeb33e15c5152147abb0d2fa0c1e6 (diff)
downloadop-kernel-dev-b9d762fa79f541ab480cdb733b46fdb0b4471c2d.zip
op-kernel-dev-b9d762fa79f541ab480cdb733b46fdb0b4471c2d.tar.gz
KVM: VMX: Add all-context INVVPID type support
Add all-context INVVPID type support. Signed-off-by: Gui Jianfeng <guijianfeng@cn.fujitsu.com> Signed-off-by: Avi Kivity <avi@redhat.com>
-rw-r--r--arch/x86/include/asm/vmx.h1
-rw-r--r--arch/x86/kvm/vmx.c23
2 files changed, 22 insertions, 2 deletions
diff --git a/arch/x86/include/asm/vmx.h b/arch/x86/include/asm/vmx.h
index b4e2840..96a5886 100644
--- a/arch/x86/include/asm/vmx.h
+++ b/arch/x86/include/asm/vmx.h
@@ -377,6 +377,7 @@ enum vmcs_field {
#define VMX_EPT_EXTENT_GLOBAL_BIT (1ull << 26)
#define VMX_VPID_EXTENT_SINGLE_CONTEXT_BIT (1ull << 9) /* (41 - 32) */
+#define VMX_VPID_EXTENT_GLOBAL_CONTEXT_BIT (1ull << 10) /* (42 - 32) */
#define VMX_EPT_DEFAULT_GAW 3
#define VMX_EPT_MAX_GAW 0x4
diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index 9452653..622d83b 100644
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -365,6 +365,11 @@ static inline bool cpu_has_vmx_invvpid_single(void)
return vmx_capability.vpid & VMX_VPID_EXTENT_SINGLE_CONTEXT_BIT;
}
+static inline bool cpu_has_vmx_invvpid_global(void)
+{
+ return vmx_capability.vpid & VMX_VPID_EXTENT_GLOBAL_CONTEXT_BIT;
+}
+
static inline bool cpu_has_vmx_ept(void)
{
return vmcs_config.cpu_based_2nd_exec_ctrl &
@@ -513,6 +518,20 @@ static inline void vpid_sync_vcpu_all(struct vcpu_vmx *vmx)
__invvpid(VMX_VPID_EXTENT_SINGLE_CONTEXT, vmx->vpid, 0);
}
+static inline void vpid_sync_vcpu_global(void)
+{
+ if (cpu_has_vmx_invvpid_global())
+ __invvpid(VMX_VPID_EXTENT_ALL_CONTEXT, 0, 0);
+}
+
+static inline void vpid_sync_context(struct vcpu_vmx *vmx)
+{
+ if (cpu_has_vmx_invvpid_single())
+ vpid_sync_vcpu_all(vmx);
+ else
+ vpid_sync_vcpu_global();
+}
+
static inline void ept_sync_global(void)
{
if (cpu_has_vmx_invept_global())
@@ -1800,7 +1819,7 @@ static void exit_lmode(struct kvm_vcpu *vcpu)
static void vmx_flush_tlb(struct kvm_vcpu *vcpu)
{
- vpid_sync_vcpu_all(to_vmx(vcpu));
+ vpid_sync_context(to_vmx(vcpu));
if (enable_ept)
ept_sync_context(construct_eptp(vcpu->arch.mmu.root_hpa));
}
@@ -2756,7 +2775,7 @@ static int vmx_vcpu_reset(struct kvm_vcpu *vcpu)
vmx_fpu_activate(&vmx->vcpu);
update_exception_bitmap(&vmx->vcpu);
- vpid_sync_vcpu_all(vmx);
+ vpid_sync_context(vmx);
ret = 0;
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